State the second law of thermodynamics. How does the second law explain why heat travels from a substance at higher temperature to one at lower temperature?

Q: A change in a system occurs such that 92.1 J of heat flows in to the system and 31.8 J of work is…

A: From the first law of thermodynamics, ∆U = Q - W where, ∆U = change in internal energy  Q = heat…

Q: arriors arrives at a blacksmith to get new weapons 1.74 kg of iron at 1371 °C, which was cooled down…

A: Suppose, the final temperature of the iron longsword is t°C.  At equilibrium, both the iron and…

Q: change in a system occurs such that 15.1 J of work is done by the surroundings and 40.1 J of heat…

A: Given; The work done on the system, (W) = 15.1 J. The heat or enthalpy of the system, (H) = 40.1 J.…

Q: 10. Explain enthalpy, entropy, and internal energy.

A: Enthalpy:-Enthalpy is the measurement of energy in a thermodynamic system. The quantity of enthalpy…

Q: The quantity of heat needed to raise the temperature of a substance by 1 °C is its Oenthalpy O…

A: Enthalpy = (H) is total heat content of system Specific heat, Heat capacity and Molar heat capacity…

Q: When 1.00 L of 1.00 M Ba(NO,), solution at 25.0°C is mixed with 1.00 L of 1.00 M Na,SO, solution at…

A: Enthalpy change is defined as the amount of heat evolved or absorbed in a reaction carried out at…

Q: A chemical reaction shifts left upon heating. What does that tell you about the enthalpy of…

A: If reaction is endothermic heat is required to form product and reaction is written as Reactant +…

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Q: State the Second Law of Thermodynamics.

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Q: a. N2 (g) + 3Cl2(g) → 2NCl3(g) ΔHo = 460 kJ/ mol; ΔSo = - 275 J/ K b. N2(g) + 3F2(g) → 2NF3(g) ΔHo =…

A: Here given multiple question...

Q: One statement of the first law of thermodynamics is that pick one the amount of work done on a…

A: The first law of thermodynamics is basically the conservation of energy. It stats that the total…

Q: When a student chemist transferred the metal to the calorimeter, some water splashed out of the…

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Q: 6. When a 1.0 g sample of acetylene was burned in a bomb calorimeter, the temperature increased by…

A: The number of moles of acetylene is calculated as shown below where m is the given mass of acetylene…

Q: When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution…

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Q: The average human lung expands by about 0.50 L during each breath. If this expansion occurs against…

A: In the case of expansion, the system loses energy to the surroundings so work done by the system is…

Q: As a system increases in volume, it absorbs 50.33 of energy in the form of heat from the…

A: The internal energy of the system can be modified by doing work on them or by adding heat to the…

Q: When a 6.00 g sample of KBr is dissolved in water in a calorimeter that has a total heat capacity of…

A: The question is based on the concept of specific heat capacity.It is defined as the amount of heat…

Q: The change in internal energy for the combustion of 1.0 mol of octane at a pressure of 1.0 atm is…

A: Thermodynamic is the branch of chemistry that mainly deals with the heat transfer between system and…

Q: a balloon filled with ammonia gas is injected with water. the balloon feels warm to the touch and…

A: Sign convention heat released = positive heat absorbed = negative

Q: An experiment was performed to calculate the heat of solution for potassium fluoride. Use the…

A: Given: The mass of water=52.42 g The mass of salt sample=7.32 g The total mass of the sample,…

Q: The heat released in a reaction can be used as a source of mechanical power. What industrial…

A: Thermochemical reactions are those chemical reactions that involve a heat change. It is of two types…

Q: Consider an ideal gas enclosed in a 1.00 L container at an internal pressure of 24.0 atm. Calculate…

A: Step 1: first we have to find work done by the gas against external force.- pexternal(v2-v1). Step…

Q: 2. A certain gas expands in volume from 2.0 L to 6.0 L at constant temperature. Calculate the work…

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